In my src catalog there is no "extfile.h" file. what to do. I have Fluent 6.2.16 version. I need this "*.h" to use an external verible in my UDF`s. Thank you for your help.

for everyone who interesting in. Answer from "main forum"

""the extfile.h has been created by the author (so it does not belong to the src files). It simply contains the declaration of the extern variable. This is used when you want to build the libudf shared library with multiple files which can share some variables. Luca Cavagna"""

Thank you Luca